Staff and Colleagues

Principal Investigators and Core Faculty

Research Staff

Trainees

Administrative Staff

Co-Investigators and Colleagues at the University of Michigan

Other Co-Investigators and Colleagues

Daniel J. Clauw, M.D.
Daniel Clauw is a Professor of Anesthesiology, Medicine (Rheumatology) and Psychiatry at the University of Michigan. He serves as Director of the Chronic Pain and Fatigue Research Center. Until January 2009 he also served as the first Associate Dean for Clinical and Translational Research within the University of Michigan Medical School, and PI of the UM Clinical and Translational Sciences Award (CTSA). He attended the University of Michigan for both undergraduate and medical school studies and then completed his Internal Medicine residency and Rheumatology Fellowship at Georgetown University. He joined the faculty at Georgetown University in 1990, and while there, founded the Georgetown Chronic Pain and Fatigue Research Center, and served as the Division Chief of Rheumatology, Immunology and Allergy, and Vice Chair of the Department of Medicine. Since moving to UM in 2001, Dr. Clauw has continued his commitment to the clinical care and research into overlapping conditions such as Fibromyalgia, Gulf War Illnesses, and Interstitial Cystitis just to name a few, having become an internationally known expert in chronic pain, and especially the central nervous system contributions to chronic pain states, performing past or ongoing work in conditions such as low back pain, osteoarthritis, vulvodynia, endometriosis, irritable bowel syndrome, and temporomandibular joint disorder.

David A. Williams, Ph.D.
David A. Williams is a Professor of Anesthesiology, Medicine, Psychiatry, and Psychology at the University of Michigan where he serves as the Associate Director of the Chronic Pain and Fatigue Research Center, Co-Director of Research Development within the Michigan Institute for Clinical and Health Research (MICHR/CTSA), and as a senior faculty member within the Institute of Healthcare Policy and Innovation (IHPI). Prior to coming to the University of Michigan he held faculty appointments at both Duke and Georgetown University Medical Centers. He is both a clinician and researcher with publications in the areas of chronic illness management, e- and m-health services delivery, patient-reported outcomes instrument development and validation, and mechanisms of pain perception/modulation. He is currently the President of the American Pain Society and serves on numerous scientific editorial boards and scientific review committees both nationally and internationally. In recognition of his commitment to students, he received the Distinguished Clinical and Translational Research Mentor Award from the University of Michigan.

Richard Harris, Ph.D.
Richard Harris is an Associate Professor in the Departments of Anesthesiology and Internal Medicine and Director of Pain and Fatigue Neuroimaging at the Chronic Pain and Fatigue Research Center at the University of Michigan. His background is in basic science and clinical research in alternative medicine. He received his B.S. degree in Genetics from Purdue University in 1992 and his Ph. D. in Molecular and Cellular Biology from UC Berkeley in 1997. Following his graduate work, he completed a postdoctoral fellowship at NIH studying the rhythmic properties of neural cultures. He is a graduate of the Maryland Institute of Traditional Chinese Medicine and has received an MS degree in Clinical Research Design and Statistical Analysis at the University of Michigan. Dr. Harris is currently investigating mechanisms of acupuncture and acupressure in the treatment of chronic pain and fatigue conditions. His recent investigations have focused on the role of central opioid receptors and brain neurotransmitters in acupuncture analgesia and chronic pain. He is a member of the American Pain Society and a co-President for the Society for Acupuncture Research. He serves as Associate Editor of and Scientific Advisor for the Journal of Acupuncture and Meridian Studies, and is an ad hoc reviewer for several other scientific publications.

Steven Harte, Ph.D.
Steven Harte is an Assistant Research Scientist in the Departments of Anesthesiology and Internal Medicine-Rheumatology and Director of Sensory Science at the Chronic Pain and Fatigue Research Center at the University of Michigan, and a Research Associate in the Medical Research Service at the Veterans Affairs Ann Arbor Healthcare System. He received his doctorate in Behavioral and Cognitive Neuroscience from Wayne State University, where he was 2005 recipient of the Ross and Margaret Stagner Memorial Award. His dissertation work utilized physiological, anatomical, and behavioral methods to explore thalamocortical connectivity and neurochemistry involved in the modulation of pain affect. After graduating he completed postdoctoral training in pain psychophysics and neuroimaging with Drs. Richard Gracely and Thomas Morrow at the University of Michigan. He completed a second CTSA-sponsored fellowship in translational pain research under the mentorship of Dr. Daniel Clauw. Dr. Harte’s current research uses animal models, multimodal quantitative sensory testing, and neuroimaging techniques to investigate the underlying pathophysiological mechanisms of chronic pain. He is a member of the Multidisciplinary Approach to the Study of Chronic Pelvic Pain (MAPP) and Symptoms of Lower Urinary Tract Dysfunction (LURN) Research Networks, where he leads the development and implementation of multi-site quantitative sensory testing methods. In collaboration with the UM College of Engineering, Dr. Harte is also involved in the development of novel medical devices, e-Health delivery platforms, and diagnostic algorithms for pain research and management. He is principal inventor on two patents filed by the University of Michigan for pain measurement devices.

Afton Hassett, Psy.D.
Afton Hassett is a licensed clinical psychologist and an Associate Research Scientist in the Department of Anesthesiology at the University of Michigan. She received her BFA from Colorado State University and her doctorate from Alliant International University in San Diego, CA. As a principal investigator at the Chronic Pain & Fatigue Research Center, she conducts interdisciplinary research related to exploring the role of cognitive, affective and behavioral factors in chronic pain populations. She has published over 70 peer-reviewed articles and is a leader in the field of resilience and pain research. Her work has focused on exploring positive emotions and affective balance in people with pain; health-related quality of life in adult and pediatric rheumatology patients; and novel interventions to promote resilience and self-management for individuals with chronic pain. Her most exciting and innovative positive health research involves developing resilience-enhancing activities to promote the sparing of premature cellular aging in patients with chronic pain (telomere research), as well as developing “prehabilitation” programs for surgical patients to try before surgery to optimize post-surgical outcomes. Dr. Hassett is the current President of the Association of Rheumatology Health Professionals – a division of the American College of Rheumatology. She is also on the Leadership Team for the Division of Positive Health for the International Positive Psychology Association. Funding sources for her present and past work include the National Institutes of Health, Happify Inc., the Arthritis Foundation, Bristol-Myers Squibb, Pfizer Inc. and the University of Michigan.

Daniel E. Harper, Ph.D.
Daniel Harper is a Research Investigator in the Department of Anesthesiology and the Chronic Pain & Fatigue Research Center at the University of Michigan. He received a B.S. in Psychology with Honors from the University of North Carolina at Chapel Hill (UNC) in 2007. He went on to pursue his graduate work at UNC in the Psychology Department’s Behavioral Neuroscience Program, receiving an M.A. in 2011 and a Ph.D. in 2014. His graduate research focused on psychophysical examinations of pain, tactile, thermal, and auditory processing in healthy individuals and those with chronic pain. In 2014 Daniel received a Tanner Award, UNC’s highest award for undergraduate teaching. He joined the CPFRC in June of that year as a Research Fellow (post-doc) to learn several neuroimaging techniques, which he has done under the mentorship of the CPFRC faculty and the support of an NIH K-12 fellowship. He is currently Principal Investigator of a research project devoted to better delineating the central and peripheral nervous system contributions to temporomandibular disorders, utilizing a variety of techniques including functional magnetic resonance imaging, magnetic resonance spectroscopy, in vivo corneal confocal microscopy, immunological assays, and quantitative sensory testing.

Chad M. Brummett, MD.
Chad Brummett is an Associate Professor in the Department of Anesthesiology at the University of Michigan. He completed his residency in anesthesiology at the University of Michigan and fellowship in pain medicine at Johns Hopkins University. His clinical roles include chronic pain management, interventional pain medicine, acute pain management, regional anesthesia, and operating room anesthesia. Dr. Brummett’s research interests and clinical responsibilities revolve around acute perioperative pain management and chronic pain, including chronic post-surgical pain. Under the mentorship of Dr. Clauw and other co-investigators from the CPFRC, Dr. Brummett has directed a study of post-surgical outcomes, including lower extremity total joint arthroplasties.

Grant Kruger, Ph.D.
Grant H. Kruger, Ph.D., is an Assistant Research Scientist in the Departments of Mechanical Engineering and Anesthesiology at the University of Michigan. He received his doctorate in Electrical Engineering from the Nelson Mandela Metropolitan University, South Africa in 2005. After graduating Dr. Kruger lectured in the Department of Mechatronics before pursuing his postdoctoral research at the University of Michigan in 2007. His research and publications cover areas from manufacturing to biomedical engineering. Dr. Kruger's current research focuses on health informatics, specifically the research and development of systems, devices and signal processing based on artificial intelligence technology.

Andrew Schrepf, Ph.D.
Andrew Schrepf is a Research Investigator in the Department of Anesthesiology and the Chronic Pain and Fatigue Research Center. His work focuses on the inflammatory and immunological substrates of centralized pain conditions, such as fibromyalgia, temporomandibular disorder, and chronic pelvic pain. His work uses deep phenotyping techniques including gene expression, provoked inflammatory responses, neuroimaging, and quantitative sensory testing to determine the neurobiological mechanisms of symptoms common to chronic pain conditions, obesity, and cancer. He completed his undergraduate work at Cornell College and received his doctorate from the University of Iowa in Health Psychology in 2015, where he was supported by an individual F31 National Research Service Award from National Cancer Institute (NCI) and a T32 program from the National Institute of General Medical Sciences (NIGMS). He is a member of the Multidisciplinary Approach to the Study of Chronic Pelvic Pain (MAPP) Research Network, with a focus on inflammatory biomarker development. He is currently supported by an institutional K12 training grant from the National Institute of Dental and Craniofacial Research (NIDCR). 

Katherine A. Scott, BSN, RN
Katherine Scott is a Research Nurse at the University of Michigan, Chronic Pain and Fatigue Research Center (CPFRC). She has a Bachelor of Science Degree in Nursing from the University of Michigan, School of Nursing. Prior to her involvement with the Chronic Pain and Fatigue Research Center, she served as a research nurse at the Michigan Clinical Research Unit (MCRU) and a Pediatric Nurse at C.S. Mott Children’s Hospital. As part of the Chronic Pain and Fatigue Research Center, she is responsible for regulatory compliance for oversight organizations such as the UM IRBMED and NIH, and coordinating study startups with the various entities involved.

Megan Halvorson, BS, CCRP
Megan Halvorson is a Clinical Research Project Manager at the University of Michigan’s Chronic Pain & Fatigue Research Center. She completed her Bachelor of Science degree at the University of Michigan with a concentration in Brain, Behavior, and Cognitive Science and a minor in Biological Anthropology. She is currently a Certified Clinical Research Professional through the Society of Clinical Research Associates (SoCRA).